RE: MFC ActiveX control(.ocx file) on Internet exporer: File drag and drop

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Hi Charlie,

Based on your description of problem, I understand you want to prevent IE
processing the file drag&drop event and let your ActiveX control to handle
it. Please let me know if I have misunderstood anything.

If so, I think you need to customize the browser instead, for this is the
default behavior of the IE browser, it will process and eat the drag&drop
event which the embedded control wanted.

If you can customize the IE, I suggest you get IWebBrowser2 Interface by
CLSID_WebBrowser at first, then call the
IWebBrowser2::RegisterAsDropTarget, passing in VARIANT_TRUE, to prevent any
drag-and-drop operations on your WebBrowser Control instance.

Since customizing is not an easy work, please refer to the following MSDN
doc for detailed info:

WebBrowser Customization
http://msdn.microsoft.com/library/default.asp?url=/workshop/browser/hosting/
wbcustomization.asp


Thanks!

Best regards,

Gary Chang
Microsoft Community Support
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